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Super Precision Angular Contact Ball Bearings S71904 ACDGB/P4A

Super Precision Angular Contact Ball Bearings S71904 ACDGB/P4A

The S71904 ACDGB/P4A is a super precision angular contact ball bearing with a 20mm bore and 37mm outer diameter, designed for high-speed applications. It features a 25° contact angle and is sealed for protection, making it suitable for environments where contamination is a concern.

Made from chrome steel with a phenolic cage, it handles dynamic radial loads up to 1287 lbf and spins smoothly at speeds up to 75,000 RPM. Its light preload ensures minimal friction, ideal for precision machinery.

This bearing is grease-lubricated and operates efficiently in temperatures from -30°C to 110°C. It can be used in matched sets for back-to-back, face-to-face, or tandem arrangements, offering flexibility in design.

Weighing just 0.037kg, it’s lightweight yet durable. Perfect for applications like machine tool spindles or high-speed motors where precision and reliability are key.

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Product Parameters

  • Part Number S71904 ACDGB/P4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 20 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 37 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 9 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 4.762 mm
  • Ball Qty 15
  • Contact Angle 25°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Sealed
  • Matched Arrangement No
  • Number Of Bearings In Matched Set 2
  • Universal Matching Bearing Yes, back-to-back (<>), face-to-face (><) or tandem (>>)
  • Preload Light / Class B
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 1287 lbf
  • Static Radial Load 686 lbf
  • Lubrication Grease
  • Temperature Range - 30°C to 110 °C
  • Max Speed 75000 rpm
  • Weight 0.037 kg
Super Precision Angular Contact Ball Bearings S71904 ACDGB/P4A dimension drawing
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Features

Performance Features of S71904 ACDGB/P4A Bearing

S71904 ACDGB/P4A Bearing is designed with a 25° contact angle, optimising load distribution for angular contact applications.
The chrome steel rings and balls enhance durability, while the phenolic cage ensures smooth operation at high speeds.

With a dynamic radial load capacity of 1287 lbf, S71904 ACDGB/P4A Bearing handles demanding conditions reliably.
Its sealed design and grease lubrication reduce maintenance needs, making it suitable for long-term use.

S71904 ACDGB/P4A Bearing operates efficiently at speeds up to 75,000 rpm, balancing performance and precision.
The P4A tolerance class ensures consistent accuracy, ideal for high-precision machinery.

Application

Key Fields for S71904 ACDGB/P4A Bearing
S71904 ACDGB/P4A Bearing is widely used in high-speed machine tools, where its precision and angular contact design ensure accurate performance. The sealed construction helps maintain lubrication, reducing maintenance needs in demanding environments.

In automotive applications, S71904 ACDGB/P4A Bearing supports components like electric motors and gear systems, thanks to its light preload and reliable chrome steel construction. Its metric sizing makes it a versatile choice for various vehicle models.

For medical imaging devices, S71904 ACDGB/P4A Bearing offers consistent operation due to its phenolic cage and high-speed capabilities. The temperature range also ensures stability in critical healthcare equipment.

Automation systems benefit from S71904 ACDGB/P4A Bearing’s ability to handle angular loads in robotic arms and 3D printers. The grease lubrication extends service life, even in continuous operation scenarios.

In consumer electronics like printers, S71904 ACDGB/P4A Bearing provides smooth motion with minimal noise. Its compact size and lightweight design make it ideal for space-constrained applications.

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